The biogenic precipitates displayed higher crystallinity for Co sulfides (up to the formation of nanocrystalline cobalt pentlandite, Co9S8) and lower crystallinity for Co-rich mackinawite, suggestive of mineral-specific bacterial interaction. The revealed precipitation and transformation pathways of Co (Fe) sulfides in this study allows for a better constraint of Co biogeochemistry in various natural and engineered environments.Acrylic acid (AA) is an important industrial chemical used for several applications including superabsorbent polymers and acrylate esters. Here, we report the development of a new biosynthetic pathway for the production of AA from glucose in metabolically engineered Escherichia coli through the β-alanine (BA) route. The AA production pathway was partitioned into two modules an AA forming downstream pathway and a BA forming upstream pathway. We first validated the operation of the downstream pathway in vitro and in vivo, and then constructed the downstream pathway by introducing efficient enzymes (Act, Acl2, and YciA) screened out of various microbial sources and optimizing the expression levels. For the direct fermentative production of AA from glucose, the downstream pathway was introduced into the BA producing E. coli strain. The resulting strain could successfully produce AA from glucose in flask cultivation. AA production was further enhanced by expressing the upstream genes (panD and aspA) under the constitutive BBa_J23100 promoter. Replacement of the native promoter of the acs gene with the BBa_J23100 promoter in the genome increased AA production to 55.7 mg/L in flask. Fed-batch fermentation of the final engineered strain allowed production of 237 mg/L of AA in 57.5 h, representing the highest AA titer reported to date.The sparse selection of available cathode materials that allow for reversible intercalation (deintercalation) of Al3+ species represents a major hurdle in the development of efficient Al-ion batteries. Herein, we developed cathodes based on TiS2 nanobelts that are capable of withstanding the high charge density of Al-ion species with minimal host lattice/ion interactions. The fabricated TiS2 nanobelts are highly anisotropic and are directly grown on a carbon current collector yielding a spatially controlled array. The sum of evidence presented in this work indicates that one-dimensional TiS2 nanobelt arrays can reversibly accommodate an unprecedented amount of Al ion species within their layered structure with no significant volume expansion as well as full retention of the nanobelt morphology. Thus, the one-dimensional morphology, nanoscale dimensions, short ion diffusion paths, high electrical conductivity, and absence of additives that hinder ion migration lead to Al-based TiS2 electrochemical devices exhibiting high specific capacity, less capacity fade, and resilience under higher cycling rates at both room temperature and elevated temperatures when compared to TiS2 platelets. We also present the effects of sulfur vacancies on the electrochemical performance of Al-based TiS2-x nanobelt array batteries. Although Al-ion batteries are still in their infancy, we believe our TiS2 nanobelt array cathode insertion hosts may play an important role in addressing the poor kinetics of solid-state Al-ion diffusion to enable efficient alternatives beyond lithium energy storage devices.Proteins are versatile macromolecules with diverse structure, charge, and function. They are ideal building blocks for biomaterials for drug delivery, biosensing, or tissue engineering applications. Simultaneously, the need to develop green alternatives to chemical processes has led to renewed interest in multienzyme biocatalytic routes to fine, specialty, and commodity chemicals. Therefore, a method to reliably assemble protein complexes using protein-protein interactions would facilitate the rapid production of new materials. Here we show a method for modular assembly of protein materials using a supercharged protein as a scaffolding "hub" onto which target proteins bearing oppositely charged domains have been self-assembled. The physical properties of the material can be tuned through blending and heating and disassembly triggered using changes in pH or salt concentration. The system can be extended to the synthesis of living materials. Our modular method can be used to reliably direct the self-assembly of proteins using small charged tag domains that can be easily encoded in a fusion protein.Although the fundamental importance and biotechnological potential of multibacterial communities, also called biofilms, are well-known, our ability to control them is limited. https://www.selleckchem.com/products/Cyclosporin-A(Cyclosporine-A).html We present a new way of dynamically controlling bacteria-bacteria adhesions by using blue light and how these photoswitchable adhesions can be used to regulate multicellularity and associated bacterial behavior. To achieve this, the photoswitchable proteins nMagHigh and pMagHigh were expressed on bacterial surfaces as adhesins to allow multicellular clusters to assemble under blue light and reversibly disassemble in the dark. Regulation of the bacterial cell-cell adhesions with visible light provides unique advantages including high spatiotemporal control, tunability, and noninvasive remote regulation. Moreover, these photoswitchable adhesions make it possible to regulate collective bacterial functions including aggregation, quorum sensing, biofilm formation, and metabolic cross-feeding between auxotrophic bacteria with light. Overall, the photoregulation of bacteria-bacteria adhesions provides a new way of studying bacterial cell biology and will enable the design of biofilms for biotechnological applications.Histone post-translational modifications (HPTMs) serve as signal platforms for recruitment of binding proteins (readers) to regulate gene expression. Accumulated evidence suggests that the intensive distribution of HPTMs may result in crosstalk, which increases or inhibits the recruitment of reader proteins, further altering the functional outcome of HPTMs. Therefore, the comprehensive identification of multiple interactions between combinatorial HPTMs and reading domains is essential to understand the chromatin-templated processes. However, it is still a big challenge to profile these complicated interactions due to various limitations including rather weak, transient and multiple interactions between HPTMs and readers, the high dynamic property of HPTMs as well as the low abundance of reader proteins. Here we developed an integrated approach to profile the complicated interactions between combinatorial HPTMs and dual domains. Based on a combinatorial HPTM peptide library (trimethylation of histone H3 lysine 4 and its neighboring PTMs) and five affinity tag proteins containing tandem-domain probes, histone interactions can be profiled by pull-down assay combined with mass spectrometry analysis.